113402231 has 2 divisors, whose sum is σ = 113402232. Its totient is φ = 113402230.

The previous prime is 113402221. The next prime is 113402249. The reversal of 113402231 is 132204311.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113402231 is a prime.

It is a super-2 number, since 2×113402231² = 25720131991554722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113402221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56701115 + 56701116.

It is an arithmetic number, because the mean of its divisors is an integer number (56701116).

Almost surely, 2^113402231 is an apocalyptic number.

113402231 is a deficient number, since it is larger than the sum of its proper divisors (1).

113402231 is an equidigital number, since it uses as much as digits as its factorization.

113402231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 113402231 is about 10649.0483612387. The cubic root of 113402231 is about 484.0317680011.

Adding to 113402231 its reverse (132204311), we get a palindrome (245606542).

The spelling of 113402231 in words is "one hundred thirteen million, four hundred two thousand, two hundred thirty-one".